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131325277 is a prime number
BaseRepresentation
bin1111101001111…
…01110101011101
3100011010000102011
413310331311131
5232104402102
621010431221
73153150346
oct764756535
9304100364
10131325277
1168147696
1237b92511
1321290a85
14136270cd
15b7e12d7
hex7d3dd5d

131325277 has 2 divisors, whose sum is σ = 131325278. Its totient is φ = 131325276.

The previous prime is 131325263. The next prime is 131325281. The reversal of 131325277 is 772523131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120428676 + 10896601 = 10974^2 + 3301^2 .

It is a cyclic number.

It is not a de Polignac number, because 131325277 - 215 = 131292509 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131325217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65662638 + 65662639.

It is an arithmetic number, because the mean of its divisors is an integer number (65662639).

Almost surely, 2131325277 is an apocalyptic number.

It is an amenable number.

131325277 is a deficient number, since it is larger than the sum of its proper divisors (1).

131325277 is an equidigital number, since it uses as much as digits as its factorization.

131325277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 31.

The square root of 131325277 is about 11459.7241240791. The cubic root of 131325277 is about 508.2953170053.

The spelling of 131325277 in words is "one hundred thirty-one million, three hundred twenty-five thousand, two hundred seventy-seven".